Machine for spinning artificial silk



E. RITTENHOUSE. MACHINE FOR SPINNING ARTIFICIAL SILK.

APPLICATION FILED MAY 20, I918.

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IAZTQ naw/Er E. RITTENHOUSE. MACHINE FOR SPINNING ARTIFICIAL SILK.APPLICATION FILEDMAY 20, 1918.

1,367,893. Patented Feb. 8, 1921.

2 SHEETS-SHEET 2- FIG. I.

' //V I/EA/ TOR 50144450 8/ TTE/VHOl/SE 14 TTOR/VEY UNITED STATES PA TENT OFFICE. I

EDWARD BITTENHOUSE, 0F IPHILADELPHIA, PENNSYLVANIA.

MACHINE FOB SPINNING ARTIFICIAL SILK. v

Specification of Letters Patent.

Application filed May 20, 1918. Serial No. 235,669.

To all whom it may concern:

Be it known that I, EDWARD Rrr'rnN- HOUSE, of 2561 N. Front St.,Philadelphia-, in the county of Philadelphia and State of Pennsylvania,have invented certain new and useful Improvements in Machines forSpinning Artificial Silk, whereof the following is a specification,reference being had to the accompanying drawings.

The invention relates to machines for suitable coagulating solution, aresubsequently directed, by means of a guide, to a central point withinthe spinning or receiving box. rotating at a very high speed.

As a result of the linear speed of the bunched strands and thecooperation of centrifugal force due to the box rotation, the saidstrands are twisted into a single thread and simultaneously built up inthe form of a cake against the inner surface of the box. When the box isfilled, it is necessary to replace the same, and this operation, inexisting spinning machinery of-this Eharacter. requires a considerabletime period. thereby greatly reducing production, until a new box issubstituted. Moreover, in order to accomplish th s. the spindle must bebrought to a standstill and this is usually accomplished byv stoppingthe primary drive.

In order to overcome these difficulties I have provided an interchangingmechanism which includes a turntable upon which two or more spindles aremounted. ,This turntable is so arranged that it may be readily swung towithdraw a filled box from active position and substitute an empty onein 'place thereof, with a comparatively small loss of time. means also"being provided for the automatic coupling or uncoupling of the spindlesfrom the driving means. The invention al o comprehends means for automatically locking the turntable in fixed po-' sition when aspindle hasbeen brought to active. position in alinement with the thread guide andthe driving means. v i

The foregoing will be better understood by reference to the followingdescription and the accompanying drawings in which Figure I is a crosssectional elevation through a portionof a spinning machine convenientlyillustrating m invention and Fig. II is a plan section 0 the same asviewed in the direction of the arrows II-II in Fig. I.

As herein shown, the machine comprises a framework so arranged as toafford a sup- .port fora double row of twisting devices comprehensivelyindicated at 1-1, each se- Patented Feb. 8, 19211. p

ries being, directly supported upon longitudinal channel beams 22,forming a part of the said frame work. Each of these twisting devicesincludes a turntable'3, centrally pivoted upon a stud 4, fixed to thechannel 2. .Since these spinning devices are similar in construction,further description will be referred to in'the singular for convenienceof explanation.

Rotatively supported in suitable bearings integrally formed with theturntable are a plurality of spindles 55, in this instance two innumber. Spindles 55. are provided at their lower ends with frictiondisks 66. which. depending upon the position of the turntable, arealternatively adaptedto engage with a similar friction disk 7, mountedupon a line shaft 8, running lengthwise of the machine and constantlyrotated by any suitable )driving means not shown.

The peripheries of the disk'6. are beveled as shown. so as to facilitatetheir riding over the periphery of the driving disk 7 in the.-

course of being shifted to active position as above noted. As will beseen from Fig. I,

a slight vertical play is allowed the spindles 5-5. for this purpose.the frictional contact between the cooperative disks being maintainedunder the influence of gravity.

Each spindle is surmounted by an annular seat or collar 10, forsupporting the receiving box 11, a central stud 12. (serving to preventdisplacement. The bunched strands of celIulose. after passing throughthe coagulating bath. as hereinbefore explained, are

directed. by means of a guide 13. preferably of glass and centrallvsuspended over the w receiving box 11, to the interior ofthe latter.

, Centrifugal force due to the high rotative speed of the box 11, causesthe yarn to be thrown against the inner vertical face of the box 11. Byvirtue of an attendant vertical reciprocation of the guide 18, throughmeans to be later described, the yarn is collected in the form of anannular cake C,

' movements of the guide.

taking the shape of the internal contour of the box 11. The rate of thefeeding of the cellulose is so related with respect to the speed ofrotation of the receiving box 11, that a twisting of the strands into asingle thread or yarn is accomplished in a manner already so well knownin this art as to obviate any further detailed description.

The box 11. is normally closed at the top by a removable cover plate 15.A central opening 16, in the plate is provided for the Said guide isfixed in the-outer end of a horizontal arm 17, supported by a verticalslide rod 18, suitably guided by the frame of the machine,

Reciprocation is imparted to the slide rod by means of an arm 19,secured upon a rock shaft 20, running along the longitudinal center ofthe machine and slowly oscillated by any suitable instrumentalities toeffect the gradual raising and lowering of the guide as already noted.

The turntable is normally held in a locked position by a lever 21, whichis adapted to engage in either of the notches 22, in the said turntable.Said lever is fulcrumed intermediate of its ends about a fixed'pivot 23,and is normally maintained by ravity in the position shown at the leftof I.

In order that the lever may be released from engagement with theturntable to permit the swinging of the same, said lever is notched atitslouter end so as to be engaged by a pin 25, projecting laterally fromthe slide rod 18, near its lower end. Thus when it is desired to swingthe turntable, the operative raises the slide rod 18, by means of I thehorizontal arm 17 as a result of which,

the previous charged one is in a position to the pin 25, engages thenotched end of the locking lever 21, thereby swinging the same to clearthe table. Consequent upon this action, the slide rod and the guide willbe .held in the raised position by virtue of the engagement of the freeend of the locking lever with the under face ofthe turntable as clearlyshown at the right of Fig.1. After the next notch is moved into positionto register with the locking lever the parts just described will againautomatically, under the influence of gravity, assume their irormalpositionsas indicated at the left of It will thus be readily seen thatafter a new box has been brought to active position,

be readily accessible to the operative for re moving the formed caketherefrom, or replacing it by another empty box.

Owing to'the corrosive nature of the coagulating solutions, and since acertain amount of the same is invariably thrown off during the twisting,operation the movable parts of the machine are adequately protected atthe top by a guard plate 30.

For the same reason, the turntable is protected by an annular flangedprotective disk 31, which is supplemented by opposed arcuate guards 32,which are concentric with the centers of rotation of the'spindles andpartially surround the same as shown in Fig. II.

While I have shown and described my invention as especially adaptable toartificial silk spinning machinery, it is, of course, to be understoodthat I .do not wish to be thus limited since various adaptations toother uses may be made and details of construction varied withoutdeparting from the spirit thereof.

of spindles; a turntable for supporting said.

spindles whereby the latter may be successively advanced to activeposition with re- Having thus described my invention, I

spect to said thread guide; a secondary driving disk mounted upon eachspindle; a power shaft; a primary friction disk cooperative with each ofsaid secondary driving disks only when swung to active position underthe movement of the turntable.

2. In a machine of the class described, the combination of a threadguide; a series of spindles; a turntable for supporting said spindleswhereby the latter may be successively advanced to active position withrespect to said thread guide; means for reciprocating said thread guidewith respect to the spindle to build the yarn upon the same; and meanscoordinated with said reciprocating means for automatically locking saidturntable in fixed position.

3. In a machine of the class described, the combination of a series ofspindles; a receiving box supported upon each of said spindles; aturntable for supporting said spindles whereby the said boxes may besuccessively advanced to active position; a thread guide having capacityfor reciprocation within the said boxes; means for normally locking saidturntable in fixed position; and means whereby the said turntable may beunlocked and the thread guide simultaneously withdrawn from the saidboxes to permit the rotation of said turntion within the said boxes;means for nor: mally locking said turntable in .fixed posi'-- tion,including a, gravity actuated locking lever cotiperative with a seriesof notches in the said turntable; a slide rod for supporting said threadguide; means carried by said slide rod forengagi'ng said locking leverto release the turntable when the thread guide is withdrawn from withinthe boxes to permit the rotation of said table.

5. In a machine of the class described, the combination of athreadguide; a series of spindles; a turntable for supporting said spindleswhereby the latter may be succesfourteenth day of 'sively advanced toactive position 'with respect to said thread guide; an annular rotectivedisk surmounting saidturntable; arcuate guards, integrally formed withsaid disk and spindles substantially as described and for the purposespecified.

artially surrounding the said In testimony whereof, I have signed my Ynamefat Philadelgliia,

ay,1918.v

EDWARD RITTENHOUSE.

Witnessesz. a

FLORENCE GALLAGHER,

' Cms. S. Ln'rLu'roN.

Pennsylvania, this

